[CollEc] RePEc Visual

[Thomas Krichel]

  Düben, Christian writes

> I weighted the edges between co-authors by their number of joint papers.

  As far a I understand we need a binary network. Otherwise can can easily
  be an a situation where we say that the shortest path between A and C
  is through B, even though A and C have written a paper together. 

>  First, I calculated the distance matrix. Distances are measured as
> the length of Dijkstra's shortest cost paths. Calculating and
> writing those 2,227,084,864 cell values to disk took 4.77 minutes in
> a process parallelized across 8 cores. Computing each author's
> closeness value and writing it to disk took 4.27 minutes in an 8
> core process. Betweenness is quite slow in comparison.

  It would be many many times faster than what I do now.

> See you tomorrow.

  Yes, 19:30 my time. 

-- 

  Cheers,

  Thomas Krichel                  http://openlib.org/home/krichel
                                              skype:thomaskrichel